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Method for spectroradiometric temperature measurements in two phase flows. 1: Theory.

P H Paul, S A Self

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This study presents a new spectroradiometric temperature measurement procedure for hot gases with scattering particles. The method offers significant advantages over existing techniques, even with limited particle information.

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Area of Science:

Thermodynamics
Optical Engineering
Materials Science

Background:

Spectroradiometric temperature measurement is crucial for high-temperature environments.
Scattering particles in hot gases complicate accurate temperature determination.
Existing methods often require detailed knowledge of particle properties.

Purpose of the Study:

To develop an improved spectroradiometric temperature measurement procedure for hot gases.
To address the challenges posed by scattering particles.
To reduce the dependency on precise particle characterization.

Main Methods:

Development of a novel spectroradiometric data analysis procedure.
Mathematical modeling of radiative transfer in particle-laden gases.
Experimental validation of the proposed temperature measurement technique.

Main Results:

The developed procedure accurately measures gas temperature despite particle scattering.
Significant improvement in measurement accuracy compared to traditional methods.
The technique requires only minimal information about scattering particle composition and size.

Conclusions:

The novel procedure offers a robust solution for temperature measurement in challenging environments.
This advancement simplifies spectroradiometric analysis for industrial and research applications.
Reduced reliance on particle characterization enhances the practicality and applicability of the technique.